1. Commercial activities related to psychoactive fungi in Thailand;Allen;Boston Mycological Club Bulletin,1991
2. Copelandia and other psychoactive fungi in Hawai'i;Allen;Hawaiian Botanical Society Newsletter,1988
3. An ethnomycological review of psychoactive agarics in Australia and New Zealand;Allen;Journal of Psychoactive Drugs,1991
4. Observations regarding the suspected psychoactive properties of Panaeolina foeniesecii Maire;Allen,1991
5. Special task on Koh Samui;Angsanakul,1987